3 papers
cs.IT2021
Lower Bound on the Optimal Access Bandwidth of ()-MDS Array Code with Degraded Read Friendly
Ting-Yi Wu, Yunghsiang S. Han, Zhengrui Li +4
Accessing the data in the failed disk (degraded read) with low latency is crucial for an erasure-coded storage system. In this work, the maximum distance separable (MDS) array code…
cs.IT2020
Update Bandwidth for Distributed Storage
Zhengrui Li, Sian-Jheng Lin, Po-Ning Chen +2
In this paper, we consider the update bandwidth in distributed storage systems~(DSSs). The update bandwidth, which measures the transmission efficiency of the update process in DSS…
cs.IT2018
On the Exact Lower Bounds of Encoding Circuit Sizes of Hamming Codes and Hadamard Codes
Zhengrui Li, Sian-Jheng Lin, Yunghsiang S. Han
In this paper, we investigate the encoding circuit size of Hamming codes and Hadamard codes. To begin with, we prove the exact lower bound of circuit size required in the encoding…